.example {
  height: 100%;
  width: 100%;
  z-index: 999;
  position: absolute;
  left: 0;
  top: 0;
  text-align: center;
  background: rgba(51, 51, 51, 0.5);
  display: flex;
}

.example_div {
  margin-top: 48vh;
  transform: translateY(-50%);
}

